23.60A.196

Standards for bridges over water and tunnels

Seattle Municipal Code · Seattle Mun. Code § 23.60A.196

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A. In shoreline environments where bridges over water and tunnels are allowed or allowed as a special use or a shoreline conditional use, they shall comply with the standards in the applicable shoreline environment and this Section 23.60A.196 . B. Bridges over water where required for subdivisions, shall span any floodway or channel migration zone. C. In mitigating impacts from bridges over water, including approaches to bridges, impacts shall be addressed in the following sequence: 1. Access points that do not require crossing water bodies are required to be used when available; 2. Shared crossings with existing crossings shall be used if feasible; 3. The route of the bridge and appurtenant structures shall be sited in the locations that have the least possible adverse effect on unique or fragile shoreline features; 4. Mitigating impacts on ecological functions including, but not limited to, shading of aquatic and wetland habitat; modification or obstruction of water circulation and flow; loss or disturbance of intertidal, sub-tidal, or shallow water habitat; loss or disturbance of food, refuge, spawning, and migration habitat; and loss or disturbance of fish runs, biological communities and biodiversity; and 5. Mitigating impacts to view corridors, which shall be minimized. D. In mitigating impacts from tunnels, including entry ways to and exit ways from tunnels and accessory structures, impacts shall be addressed in the following sequence: 1. The route of the tunnel and accessory structures shall be sited in locations that have the least possible adverse effect on unique or fragile shoreline features; and 2. Adverse impacts to views of the water from waterfront parcels shall be minimized. (Ord. 124105 , § 3, 2013.)

Seattle WA 23.60A.196 | Municipal Law | Corpus